/*
 * Copyright [2013-2021], Alibaba Group Holding Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.polardbx.executor.operator.util;

/**
 * Utilities about Vectorization
 *
 */
public abstract class VectorUtils {

    public static int[] addInt(int[] a, int[] b) {
        assert a.length == b.length;
        final int len = a.length;
        int[] results = new int[len];
        for (int i = 0; i < len; i++) {
            results[i] = a[i] + b[i];
        }
        return results;
    }

    public static void addInt(int[] results, int[] a, int[] b, int len) {
        for (int i = 0; i < len; i++) {
            results[i] = a[i] + b[i];
        }
    }

    public static int[] multiplyInt(int[] a, int b) {
        final int len = a.length;
        int[] results = new int[len];
        for (int i = 0; i < len; i++) {
            results[i] = a[i] * b;
        }
        return results;
    }

    public static void multiplyInt(int[] results, int[] a, int b, int len) {
        for (int i = 0; i < len; i++) {
            results[i] = a[i] * b;
        }
    }

}
